Description
The Lochinvar & A.O. Smith PRS30025 Low Air Pressure Switch is a safety control component used to monitor air conduction within combustion or ventilation circuits. It detects insufficient or abnormal airflow and signals the system control board to initiate shutdown ignition when unsafe conditions occur. The switch is commonly installed in boilers, water heaters, and forced-air heating equipment of HVAC systems. It operates as part of the appliance safety interlock system, ensuring correct draft conditions in heating applications in commercial mechanical connection within control systems.









